Instance Property


Reads next event from the queue.


IOReturn (*getNextEvent)(void *self, IOHIDEventStruct *event, AbsoluteTime maxTime, uint32_t timeoutMS);



The event that will be filled. If a long value is present, it is up to the caller to deallocate it.


UNSUPPORTED. If non-zero, limits read events to those that occurred on or before maxTime.


UNSUPPORTED. The timeout in milliseconds, a zero timeout will cause this call to be non-blocking (returning queue empty) if there is a NULL callback, and blocking forever until the queue is non-empty if there is a valid callback.

Return Value

Returns an IOReturn code.

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